Cystopteris protrusa Comptonia Occasionally the clumps will throw

Occasionally the clumps will throw an all-green division

'Whirlwind Tour'

or Trillium rugelii

Aspidistra sichuanensis 'Spotty' forms a 24-30" tall clump of arching 30" long leaves

Cystopteris protrusa Comptonia Occasionally the clumps will throw(aka: Cystopteris fragilis var. protrusa) Protruding bladder fern really? There's a name that obviously wasn't run by the marketing team, which is a shame since it's a truly great fern. So, if you can get past the common name, and you're looking for a compact groundcover fern, look no farther than the North American native southern fragile or bladder fern, Cystopteris protrusa. Native to all states east of the Mississippi River, the widespread